Second Canadian cow with Mad Cow Disease

A day after Bush administation officials agreed to open the border to Canadian cattle, Canadian officials have identified a new case of mad cow disease in Alberta.

The Canadian Food Inspection Agency said: "The infected animal was detected through the recently enhanced national surveillance program. Additional cases may be found as testing of high-risk cattle continues."

Officials have said there is no risk to the public, as the cow had not entered the human or animal food supply.